Atec AV32OPD, Service Manual

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9. Circuit Diagram
- MAIN BOARD
- POWER BOARD (SMPS)
10. BOM (Parts List)
- MAIN BOARD
- POWER BOARD (SMPS)
11. Assembly Diagram
1. Safety precautions
* General details
1) When providing service, pay attention to the basic wiring and if you see a short circuit, you must replace
all parts overheated or damaged by the short circuit.
2) After the service, check if the all elements for protection with insulation layer, insulation paper and shield
R-C composite element are well assembled.
3) When not watching the TV for a long period of time, unplug the power cord.
4) Because the high voltage goes through the power (SMPS) when the TV is operating, it is dangerous from
electric shock to operate the TV with the back cover open. Repairing must only be done by a repair
technician who has adequate knowledge about the high voltage.
5) After completing the service, the repair technician must inspect the following electric current leakage to
protect the user from electric shock.
6) Always check if all the internal protection devices are installed. If there is a protection plate, directly
install it.
7) After completely assembling the set, plug the AC line cord to the power outlet. Set the power switch to on
and then turn it off. Measure the current between the earth (GND) and antenna, metal parts, projected
metal parts such as screw heads. The measured current should not exceed 3.5mA.